Yes, they are mostly attracted to CO2 I think. So some traps that burn propane to attract them. Others I've seen are basically a screen over a fan with a block of dry ice. They use those to collect for like an hour then weigh the mosquitos and test for diseases in a swamp.
Yes, they are mostly attracted to CO2 I think. So some traps that burn propane to attract them. Others I've seen are basically a screen over a fan with a block of dry ice. They use those to collect for like an hour then weigh the mosquitos and test for diseases in a swamp.